# 2008 Mercury Grand Marquis - Shakes and gets hot

**URL:** <https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193>\
**Category:** Maintenance/Repairs\
**Tags:** mercury\
**Created:** [November 11, 2020, 4:07pm UTC](https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193 "2020-11-11T16:07:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![emills71322](https://avatars.discourse-cdn.com/v4/letter/e/6f9a4e/32.png) [@emills71322](https://community.cartalk.com/u/emills71322)\
**Post date:** [November 11, 2020, 4:07pm UTC](https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193/1 "2020-11-11T16:07:01Z")

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My car shakes and the engine heat level continuously goes up no matter how many times I get my coolant flushed and I need a new muffler

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [November 11, 2020, 4:22pm UTC](https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193/2 "2020-11-11T16:22:55Z")

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And you need a better mechanic.

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [November 12, 2020, 1:30am UTC](https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193/3 "2020-11-12T01:30:09Z")

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^This +1. I suspect you have a stuck thermostat, which means all the coolant flushes in the world won’t solve the problem.

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [November 12, 2020, 1:24pm UTC](https://community.cartalk.com/t/2008-mercury-grand-marquis-shakes-and-gets-hot/172193/4 "2020-11-12T13:24:15Z")

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No amount of flushing the cooling system will stop your car from shaking.  
Whoever your mechanic that is flushing your cooling system is, they are doing you a disservice.